Wristwatch strap



FIG. 1 is a perspective view of the wristwatch strap showing my new design;

FIG. 2 is a front elevational view of FIG. 1;

FIG. 3 is a back side elevational view of FIG. 1;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a left side view of FIG. 1;

FIG. 6 is a bottom view of FIG. 1; and,

FIG. 7 is a top view of FIG. 1.

The dotted lines are intended to show features that are environmental only and form no part of the claimed design. 

CLAIM The ornamental design for a wristwatch strap, as shown and described. 